Answer:
$14.75
Step-by-step explanation:
Answer:
y = 2x + 2
Step-by-step explanation:
Slope = 2
y-intercept: 4 - (2)(1) = 2
If y varies directly with x, means that they can be modeled by a linear equation, lets choose a line with 0 y intercept, that is:
y = mx + b
y = mx
where m is the slope of the line, now we plug in the data we have:
y = mx
20/3 = m(30)
solving for m:
m = (20/3)(1/30)
m = 20/90
m = 2/9
so the line equation, or function modeling the y and x relationship is:
y = (2/9)x
Step-by-step explanation:
cross multiply all equations seperately
1,n=63
2.n=24
3.n=19
4.n=20
The first part is $15.00
Second part is $13.50
Mark me brainliest.
Thanks!
